37 lines
745 B
Python
37 lines
745 B
Python
from migen.genlib.record import *
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def dat_layout(dw):
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return [
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("stb", 1, DIR_M_TO_S),
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("dat", dw, DIR_M_TO_S)
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]
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def hit_layout():
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return [
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("stb", 1, DIR_M_TO_S),
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("hit", 1, DIR_M_TO_S)
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]
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@DecorateModule(InsertReset)
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@DecorateModule(InsertCE)
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class Counter(Module):
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def __init__(self, signal=None, **kwargs):
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if signal is None:
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self.value = Signal(**kwargs)
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else:
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self.value = signal
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self.width = flen(self.value)
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self.sync += self.value.eq(self.value+1)
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@DecorateModule(InsertReset)
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@DecorateModule(InsertCE)
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class Timeout(Module):
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def __init__(self, length):
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self.reached = Signal()
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###
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value = Signal(max=length)
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self.sync += value.eq(value+1)
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self.comb += [
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self.reached.eq(value == length)
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]
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